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A kind of mold and manufacturing method thereof through graphene surface treatment

A production method and graphene technology, applied in gaseous chemical plating, metal material coating process, coating and other directions, can solve the problems of welding marks, increase cost output, shrinkage cavities, etc., achieve rapid heating or cooling, reduce Production cost, the effect of prolonging its own life

Active Publication Date: 2015-08-26
GUANGDONG JANUS SMART GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0002] According to the existing mold making process, during the production process of castings, due to the design and manufacturing defects of the mother mold, and the uneven humidity of the casting sand, or the temperature does not meet the requirements, the thickness of the mold itself is uneven, and the molding level is uneven.
After rough machining of these molds, many defects such as shrinkage cavities, pores, and material sinking will occur on the casting mold body with complex structure and many irregular surfaces.
In this way, the products are prone to some common defects, such as product dents, silver streaks, flashes, deformation, fusion marks, ripples, uneven color, poor finish, mold release damage and cracks, etc. Bad phenomenon, which greatly affects the yield of the product
Defects on the mold need to be repaired continuously, and the life of the mold is also short, which increases the actual cost output and reduces the production efficiency

Method used

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Examples

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Embodiment Construction

[0033] The following describes the embodiments of the present invention in detail. It should be emphasized that the following description is only exemplary, and is not intended to limit the scope of the present invention and its application.

[0034] Some embodiments relate to a graphene surface-treated mold. Unlike traditional molds, the surface of the mold core is processed to have a layer of graphene nano-film. Preferably, the thickness of the graphene nano film is 0.1 μm to 1 μm. Graphene is a kind of sp 2 A new nanomaterial with a single-layer, two-dimensional honeycomb structure composed of hybrid carbon atoms. The structure is very stable, and the connection between the carbon atoms is very flexible. When subjected to external mechanical force, the surface of the carbon atoms will be bent and deformed, without having to rearrange to adapt to the external force, thus ensuring the stability of the structure. Graphene is an extremely hard nanomaterial, which is 10 times har...

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Abstract

The invention discloses a mold with the surface treated by graphene. The mold is characterized in that the treated surface of a mold core is provided with a layer of graphene nano film. The thickness of the graphene nano film is 0.1 micron-1 micron. The invention also discloses a manufacturing method of the mold. The manufacturing method comprises the following step of forming one layer of graphene nano film on the surface of the mold core of the mold. The invention has the advantages that by surface treatment on the mold core of the mold, one layer of graphene nano film is plated on the surface, the mechanical property of the surface of the mold can be greatly enhanced, the mold can be quickly heated or cooled, the quality of a product is improved and the service life of the mold is prolonged.

Description

Technical field [0001] The present invention relates to a mold, in particular to a mold subjected to graphene surface treatment and a manufacturing method thereof. Background technique [0002] According to the existing mold making process, in the production process of castings, due to defects in the design and manufacture of the mother mold, as well as the uneven humidity of the casting sand, or the temperature does not meet the requirements, the thickness of the mold itself is uneven, and the modeling level is uneven. After these molds are rough-processed, many defects such as shrinkage, pores, and sinking will occur on the casting mold with complex structure and more special-shaped surfaces. The female mold blanks with serious defects are even like mouse holes and hornet's nests. As a result, the product is prone to some common defects, such as product dents, silver streaks, flashing, deformation, fusion marks, wave flow, uneven color, poor finish, breakage and cracks in mold ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B29C45/26C23C16/26B29C33/38
Inventor 周忠群王长明谢守德
Owner GUANGDONG JANUS SMART GRP CO LTD
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